What Is Friction? (Rookie Read-About Science: Physical Science: Previous Editions);

- Includes very basic science facts for early elementary readers.
- Simple language patterns help emergent readers master the text.
- Format includes large color photographs, easy-to-read font, and simple interior design.
- Photographs are directly related to the text.
- Includes index and a word list.
Grades K-4 National Science Standards
- Science As Inquiry: I
- Form questions about objects, organisms, and events in the environment
- Conduct investigations
- Physical Science: II
- Objects can be moved, and those motions can be described